you can already get the install package off this site, all we need now is an app that can install pkg file.

Not that running / having backups on the internal drive / installing the backup manager isn't already asking for it, but assuming by some amazing twist of luck and fate that doesn't get you banned from PSN, running downloadable games that you never paid for and were never associated with your account almost certainly will.

you can already get the install package off this site, all we need now is an app that can install pkg file.

This is correct, I have tried to install a few install packages from here like:

Castlevania SOTN
FinalFantasy VII
Flower

Each one errors the second you try to install the package. I am pretty sure we will need and app like the wad manager on the wii.
And if I'm not mistaken all of these pkg's are encrypted and would need to be decrypted first but I could be wrong on that.